WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-users

Re: [Xen-users] domain migration doesnt migrate config files??

To: xen-users@xxxxxxxxxxxxxxxxxxx
Subject: Re: [Xen-users] domain migration doesnt migrate config files??
From: Mark Williamson <mark.williamson@xxxxxxxxxxxx>
Date: Wed, 29 Mar 2006 00:19:19 +0000
Delivery-date: Wed, 29 Mar 2006 00:21:33 +0000
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <6025df6b0603281616w3cbb2ff2tf2a5a3646806bf12@xxxxxxxxxxxxxx>
List-help: <mailto:xen-users-request@lists.xensource.com?subject=help>
List-id: Xen user discussion <xen-users.lists.xensource.com>
List-post: <mailto:xen-users@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/cgi-bin/mailman/listinfo/xen-users>, <mailto:xen-users-request@lists.xensource.com?subject=unsubscribe>
References: <6025df6b0603281616w3cbb2ff2tf2a5a3646806bf12@xxxxxxxxxxxxxx>
Sender: xen-users-bounces@xxxxxxxxxxxxxxxxxxx
User-agent: KMail/1.9.1
> So I had to Xen servers running.  Server 1 had 4 domUs on it.  I tried
> migrating them to Server 2 and was successful.  Note I did NOT do a
> live migration because that locks the sending server up.

:-(

> So after migrating my domUs to server 2, I went to shutdown server 1
> and accidentally powered off server2 also.  When I brought server 2
> back up, I could not restart any of the domUs and could not find any
> of their config files.
>
> Does migration migrate the entier domain (including sparse files,
> config files and so forth) or does it just migrate the data that Xen
> stores in RAM to get the machine running on the relocation server??

The domain's memory image is transferred.  Virtual disks are not migrated (are 
you using a SAN, NAS, or similar?), and neither are config files.

The domain's configuration is migrated when the domain moves, but it's held in 
memory - it's not stored on the disk.  I believe the state will persist as 
long as that domain is running, and that server is up.

Cheers,
Mark

>
> Cheers
> Jeff
>
> --
> ------------------> Jeffrey Lane - W4KDH <-------------------
>                       www.jefflane.org
>                     Yet another IT Ronin
>
> The internet has no government, no constitution, no laws, no
> rights, no police, no courts.  Don't talk about fairness or
> innocence, and don't talk about what should be done.  Instead,
> talk about what is being done and what will be done by the
> amorphous unreachable undefinable blob called "the internet
> user base." -Paul Vixie
>
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users

-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users

<Prev in Thread] Current Thread [Next in Thread>